Boris Rodriguez of Novato is a responsible young man now, but for much of his adult life he was responsible for a lot of anguish. Three convictions for driving under the influence of alcohol or drugs got him intimately involved with the justice system, of which the Marin County Probation Department is a critical public safety cog. After Rodriguez served time in both Marin County Jail and state prison, Probation Department officers sought a personal commitment from Rodriguez to get sober and turn his life around. And he did.